| 空间辐射散热器含液滴介质的辐射特性和辐射传热 |
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| 引用本文： | 阮立明,谈和平,王平阳,刘林华,夏新林.空间辐射散热器含液滴介质的辐射特性和辐射传热[J].宇航学报,1999,20(4):32-38. |
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| 作者姓名： | 阮立明 谈和平 王平阳 刘林华 夏新林 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院,哈尔滨,150001 |
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| 基金项目： | 国家杰出青年科学基金，国家自然科学基金 |
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| 摘 要： | 本文从米氏电磁散射理论出发，计算了含液滴介质的辐射特性。考察了中向同性散射能量传递份额的再分配，导出了吸收、发射、各几同性散射介质的辐射传递系数。计算了空间辐射散热器液滴层瞬态辐射换热，经与文献［４，５］的比较表明，本文所导出的辐射传递系数计算方法正确，精度高。用计算机辅助实验，分析液滴发生器产生粒子的大小、粒径分布对瞬态辐射换热的影响，可减少空间辐射散热器设计过程中的实验次数。
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| 关 键 词： | 空间辐射散热器 液滴层 辐射换热 辐射传递系数 |
| 修稿时间： | :1998年4月20 |
RADIATIVE PROPERTIES AND HEAT TRANSFER OF A DROPLET-FILLED LAYER IN SPACE RADIATOR |
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| Ruan Liming,Tan Heping,Wang Pingyang,Liu Linhua,Xia Xinlin.RADIATIVE PROPERTIES AND HEAT TRANSFER OF A DROPLET-FILLED LAYER IN SPACE RADIATOR[J].Journal of Astronautics,1999,20(4):32-38. |
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| Authors: | Ruan Liming Tan Heping Wang Pingyang Liu Linhua Xia Xinlin |
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| Abstract: | The radiative properties of a droplet filled layer are calculated by using the Mie scattering theory in this paper.The redistribution of radiative energy in the case of isotropic scattering is investigated,and the radiative transfer coefficient (RTC) in an absorbing,emitting and isotropic scattering medium is derived.The transient radiative heat transfer of a droplet filled layer in space radiator is solved.Then the validity and high precision of the formula for the RTC are confirmed by comparing with references 4,5].Finally,the effects of size or size distribution of droplet,which are created by generator,on the transient coupled heat transfer are analyzed by means of computer aided experiment,so the numbers of experiment can be reduced in design of space radiator. |
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| Keywords: | Space radiator\ Droplet layer\ Mie scattering theory\ Radiative heat transfer Radiative transfer coefficient |
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